Improvement in feed-water apparatus for steam-boilers



L Ca l CQ .Y I

CHARLES G. FISHER.

Feed Water Apparatus.

N0. 119,835. Patented Oct. 10,187x.,

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UNITED STA'IEs PATENT OFFICE.

CHARLES G. FISHER-OF WASHINGTON, DISTRICT OF COLUMBIA.

IMPROVEMENTIN FEED-WATER APPARATUS FOR STEAM-BOILERS.

Specification forming part of Letters Patent No. 119,835, dated October10, 1871.

To all lwhom it may concern:

Be it known that I, CHARLES G. FISHER, of Washington, in the county ofWashington and District of Columbia, have invented an Improvement inFeed-Water Apparatus for Steam-Boilers, of Which the following is aspecification The nature of my invention consists in a feed- Water pipeor pipes with a check-valve on that end nearest the feed-check valveproper, and, projecting through the shell of the boiler, is attached tosuch feed-check-valve on the outside of the boiler in any suitablemanner. The pipe or pipes pass from the interior of the check-valvealong the crown-sheet, and when near the smoke-box return, as shown inthe drawing, or in any other desirable manner, and after so returningare fitted at intervals With distributers of any desirable capacity ofdelivery or of any proportionate size. Screens or slotted boxes may alsobe used in place of the distributers shown. These distributers deliverthe Water throughout the boiler at the same time, and at a very hightemperature, thereby preventing contraction and expansion consequent toother modes of feeding. The objects of my invention are the preventionof too sudden contraction and expansion of steamboilers, which conduceto weakness and rapidly Wear the boiler out; also, to prevent feed-Waterfrom being supplied at too low a temperature by delivering the Water ata high temperature. The accompanying drawing represents the apparatus asarranged in a boiler.

A is a steam-generator of common construction. S is a smoke-box; P P,the feed-pipes, either straight, serpentine, or coiled, or of any anyother known form 5 j' j' f, the distributers, either of graduated orequal distributing powers, of the shape above or any other desirablelform. The feed-Water passes through the check-valves into thefeed-pipes P P, and, as it passes along the crown-sheet, becomes heatedto a high temperature, and in returning is delivered into the boilerthrough the distributers f j', Which distribute itin all parts equallyand at high temperature.

I do not restrict my invention to any given number of distributers, orto their sizes or shapes.

Having thus described my invention, What I desire to secure by LettersPatent isl. The feed-Water pipe or pipes P P, With distributer ordistributers attached, when arranged as herein shown, substantially a'sand for the purpose described.

2. The combination of the feed-Water pipes P P With distributers ff andfeed-check-valve O, substantially as and for the purpose shown anddescribed. l

In testimony whereof I have signed my name to this specication in thepresence of tivo subscribing Witnesses.

CHARLES G. FISHER. Witnesses:

GEo. P. FISHER,

GEosEPH B. TRACY. (148)

